5340-00-959-2157 SEAT,HELICAL COMPRESSION SPRING Index 2920-00-959-2160 LEAD SET,IGNITION,ENGINE

National Stock Number:
5310-00-959-2158

Federal Supply Class:
5310

National Item Identification Number:
009592158

Description:
NUT,PLAIN,HEXAGON

Detail:
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see LOCKNUT, ELECTRICAL CONDUIT. See also LOCKNUT, TUBE FITTING. For items having a thickness (or height) exceeding two times the width across the flats, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. (When height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)


Manufacturer Information:
10121890A486GNIMIKKEISTOKESKUS NCB FINLAND
5310PL07382449009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
NAS1423-1080205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
LS5990-1098897LOCKHEED MARTIN CORP


Techincal Specification:
DRILLED HOLE DIAMETER0.046 INCHES NOMINAL
BEARING SURFACE FINISH250.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
COUNTERSINK ANGLE110.0 DEGREES NOMINAL NUT
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
HOLE CONFIGURATION STYLECONFIGURATION B
HOLE TYPE AND QUANTITY3 DRILLED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OR STEEL COMP E4340 OR STEEL COMP 4340 OVERALL
NOMINAL THREAD SIZE0.625 INCHES
NUT HEIGHT0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.986 INCHES MINIMUM AND 1.002 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
THREAD QUANTITY PER INCH18


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